47-854 4.0mm Dia. x 12.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 4 mm
- EFL
- 12 mm
- BFL
- 11 mm
- R1
- 6.22 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
47-854 4.0mm Dia. x 12.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm
The 47-854 is a Plano-Convex Lens, a type of spherical lens, sourced from Edmund Optics. This lens boasts a diameter of 4.0mm and a focal length of 12.0mm, making it a compact yet powerful optical component. The lens is made from n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low dispersion.
The lens features a plano-convex geometry, meaning one side is flat (plano) while the other side is curved (convex). The curvature of the convex side is defined by a radius of 6.22mm, and the lens has a central thickness of 1.52mm, with an edge thickness of 1.19mm. The back focal length (BFL) is 11mm, and the effective focal length (EFL) is 12mm.
The 47-854 is coated with edm visnir0sp2002000 on both the front and back surfaces. This coating enhances the lens's performance in the visible (VIS) and near-infrared (NIR) spectrum, specifically between 400-1000nm. The coating reduces surface reflections, increasing the lens's transmission and overall optical efficiency.